Skip to main content
An icon that symbolizes the United States Department of Transportation logo. United States Department of Transportation
Report a Safety Problem
National Highway Traffic Safety Administration National Highway Traffic Safety Administration Homepage
  • Ratings
  • Recalls
  • Risky Driving
  • Road Safety
  • Equipment
  • Technology & Innovation
  • More Info
    • Briefing Room
    • Parents & Caregivers
    • Importing a Vehicle
    • Data
    • Research
    • Laws & Regulations
    • Vehicle Manufacturers
    • State Governments
    • Enforcement & Justice
Federal Motor Vehicle Safety Standards

Federal Motor Vehicle Safety Standard; Air Brake Systems

Other Equipment
Share:

49 CFR, Part 571 121 Regarding trailers with antilock brake systems being equipped with an external antilock malfunction indicator lamp

Interim Final Rule, Federal Motor Vehicle Safety Standard; Air Brake Systems 73.52 KB Notice of Proposed Rulemaking: Federal Motor Vehicle Safety Standard; Air Brake Systems 77.33 KB
NHTSA Information
  • About NHTSA
  • Careers & Internships
  • Contact Us
  • Sign Up for Recall Alerts
  • Report a Safety Problem
Information For
  • Vehicle Manufacturers
  • State Governments
  • Enforcement & Justice
NHTSA Sites
  • TrafficSafetyMarketing.gov
  • EMS.gov
  • 911.gov
Website Information
  • Web Policies & Notices
  • Accessibility
  • FOIA
  • Privacy Policy
  • Information Quality
  • No Fear Act Data
  • Ethics
  • Civil Rights
  • Office of Inspector General
  • OIG Hotline
  • BusinessUSA
  • USA.gov
  • WhiteHouse.gov
National Highway Traffic Safety Administration

National Highway Traffic Safety Administration

1200 New Jersey Avenue, SE
Washington, D.C. 20590

1-888-327-4236
1-800-424-9153 (TTY)

Twitter Facebook Youtube Instagram

U.S. Department of Transportation

Submit Feedback >